Two days ago, we ran a post about Gmail's new web interface. It was intended as a brief note to our users pointing back to Google's original post.
Little did we know that this particular post would get 10k visitors in 48 hours. Most users appears to be confused, thinking we were Google and asking us for various features. We are not Google, nor are we affiliated with Google in any way.
With that said, you can actually get Gmail's new interface today.

How you can get the new interface

All you need to do is to go to 'Mail Settings' (click the icon in the upper-right hand corner), and go to 'Themes' tab. Then pick either 'Preview' or 'Preview (dense).' That's it.
Getting Gmail's new interface

Gmail's old interface

Before - Old Gmail interface

Gmail's new interface

The new Gmail interface